Question

Name a plant in which stomata are usually absent.
A student focused on the leaf epidermal peel under a low power microscope, but could not see all parts. What should he do to for correct observation?
Leaf peels are mounted in glycerine during slide preparation why?

Answer 1

Name a plant in which stomata are usually absent.

Stomata are usually absent in Hydrilla. It is a submerged plant that grows under water. Its narrow leaves have no stomata at all. They breathe through their body surface.

A student focused on the leaf epidermal peel under a low power microscope, but could not see all parts. What should he do to for correct observation?

To observe all parts of a leaf peel epidermis, the student should focus under high power using the adjustment knob.

Leaf peels are mounted in glycerine during slide preparation why?

Leaf peels are mounted in glycerine to prevent it from dying. Glycerine is a hygroscopic compound which forms a layer of moisture over the leaf peel.

Answer 2

Answer is given above.